Woolzies are pure the highest quality handmade New Zealand wool dryer balls without any fillers, that soften your laundry naturally while getting rid of the chemicals from the conventional fabric softeners. Unlike the plastic dryer balls, they are PVC free and won't fall apart or melt on you. Woolzies save time and energy by cutting down on drying time by an average of 25% per load. They also help reduce static and wrinkles.